Which three steps are correct when solving this quadratic equation by completing the square x2-10x=39

A) x2-10x-39=0
B) x2-10x+25=39+25
C) (x-5)2=64
D) (x+5)2=64
E) x=-3 or x=13

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?